Science & Mathematics - 30 October 2006

2006-10-30 10:45:29 · 8 answers · asked by Latricia W 1 in Earth Sciences & Geology

2006-10-30 10:44:12 · 14 answers · asked by dog 1 in Mathematics

2006-10-30 10:43:42 · 12 answers · asked by James R 1 in Mathematics

2006-10-30 10:43:22 · 7 answers · asked by Anonymous in Mathematics

2006-10-30 10:39:41 · 6 answers · asked by kki 1 in Weather

2006-10-30 10:39:23 · 16 answers · asked by jenny s 1 in Earth Sciences & Geology

outlining a research paper

2006-10-30 10:37:15 · 4 answers · asked by kinesha r 1 in Earth Sciences & Geology

2006-10-30 10:37:05 · 3 answers · asked by stealth5033 3 in Medicine

I have a problem in how I can go about determining the before and after concentrations or amounts of bacteria. The goal is to determine whether a certain brand of mouthwash or certain method of rinsing is better. I will swab the inside of my mouth and transfer the sample onto a petri dish and gel to allow growth. After some time of growth, I will subject the bacteria growth to the mouthwash. How can I go about determining or measuring how much bacteria I had before and after adminstering the mouthwash? I don't necessarily need a count, but a % reduction would work as well. Any suggestions on a method I could use, some type of equipment, or even any modification I could use in my approach to accomplish the task of comparing before and after?

2006-10-30 10:36:24 · 3 answers · asked by iamstidi 1 in Biology

Please explain it, don't just copy and paste an answer.

What I need the most is an explanation of the things that make them different.

Thanks.

2006-10-30 10:35:39 · 6 answers · asked by Anonymous in Biology

I am having a really touch time trying to figure out how do this problem so can somebody please help explain it to me.


If 5.00g magnesium is combined with 10.0g of chlorine, show by calculation which substance is the limiting reactant, and calculate the theoretical yield of magnesium chloride for the reaction.

2006-10-30 10:31:21 · 1 answers · asked by abc 2 in Chemistry

5x^2-4x+1=0
Also says if there is more than one root to separte them with commas (My math class is online) Thank you!!!!!

2006-10-30 10:30:38 · 10 answers · asked by Anonymous in Mathematics

Also, what is the fastest sea animal?

2006-10-30 10:30:27 · 12 answers · asked by ilovebasketball 2 in Geography

i am dong an assignment at school based on why people believe in extra terrestrial life and why they dont. this is for my major assignment for my final year in high school and i would really appreciate finding out what different views people have. please help.

2006-10-30 10:30:04 · 15 answers · asked by mel h 1 in Astronomy & Space

This is for my daughter who is in JHS. I don't get this so please tell me how you got the answer so I can teach her. Thanks.

A hot air balloon goes on a short trip into the air. The relationship between the balloon's height and the time is described by the equation.
y = - x 2 + 6x

Where the x is the time in seconds sicne the balloon took off, and y is the balloon's height in meters.

2006-10-30 10:28:38 · 5 answers · asked by Anonymous in Mathematics

2006-10-30 10:27:11 · 3 answers · asked by ted r 1 in Botany

2006-10-30 10:25:50 · 5 answers · asked by colombianqt2112 2 in Astronomy & Space

Because nothing else seems to happen in the vastness of space.
Why can't some alien race from the depths of space invade us and spice things up a bit? Little Green Prime Minister would be nice for a change.

2006-10-30 10:24:05 · 11 answers · asked by Barbara Doll to you 7 in Physics

a) Looking at a pair of Optical isomers one would see different
types of chemical bonds in each isomer, however these bonds would have similar spatial arrangements


b) Optical isomers can have different chemical properties


c) A coffee cup and its mirror image are identical, they are superimposable


d) The mirror image of your left hand appears the same as your right hand, i.e. not superimposable

NOTE: there can be more than one answer

any help would be greatly appreciated!!! i saw this question in other posts, but there were different answers from all of them, so just curious if anyone else was sure of the answer they had... thanks again! =]

2006-10-30 10:23:58 · 3 answers · asked by nietzsche 1 in Chemistry

just wanted to know how they a like

2006-10-30 10:23:56 · 3 answers · asked by Anonymous in Earth Sciences & Geology

integral of (x+1)(2x^2+1)/(x^4+x^2)

requires integration by parts

2006-10-30 10:22:23 · 2 answers · asked by The Dude 3 in Mathematics

2006-10-30 10:22:07 · 12 answers · asked by Anonymous in Earth Sciences & Geology

this questions be giving me trouble, does anyone know how to do it (the steps) not the answer

<*=less than or equal to, greater than or equal to

in the domain of
f(X)=2x+1 is {-2,<*x <* 3}

which integer is not in the range?

2006-10-30 10:17:27 · 4 answers · asked by mapassqadri 2 in Mathematics

How long does it take a slide loving pig to slide 2 m down a 30° incline (the incline is measured from the
horizontal) with a coefficient of static friction of 0.35 and a coefficient of kinetic friction of 0.30?

2006-10-30 10:16:42 · 2 answers · asked by Shane H 2 in Physics

2006-10-30 10:14:36 · 1 answers · asked by Eileen 1 in Biology

Down the toilet, i hate killing anything (honest) What are his chances of survivall down a drain??

2006-10-30 10:13:12 · 19 answers · asked by Anonymous in Zoology

i know that male octopi have a specialized arm called a hectocotylus to insert spermatophores (packets of sperm) into the female's mantle cavity. but does that mean the the hectocotylus is the octopi testacles? or is there a separate organ in the hectocotylus that produces the spematophores?

2006-10-30 10:12:43 · 4 answers · asked by crush the turtle 4 in Zoology

2006-10-30 10:10:39 · 8 answers · asked by Anonymous in Engineering

There are 25.4 fl. ounces in a bottle of red wine with 12.5% alcohol. There are 12 fl ounces in bottle of beer with 5% alcohol. How many ounces of beer would you need to consume to intake the same amount of alcohol as the 25.4 fl. oz bottle of red wine.

2006-10-30 10:09:52 · 5 answers · asked by Sugar_Mama 3 in Mathematics

this is a science problem

2006-10-30 10:09:48 · 8 answers · asked by princess g 1 in Zoology